| All Patents in class 81/166 |
Patents 16 -
30
of 61
      |
| Number | Date | Patentee | Title | Type |
| 269,234 | Dec. 19, 1882 | E.A. Robbins | Pipe Wrench | pipe wrenches |
| 298,043 | May 06, 1884 | N.W. Vandegrift | Wrench | pipe wrenches |
| 299,962 | Jun. 10, 1884 | J. Combs | Improved Ratchet-Wheel Wrench | ratchet wrenches |
| 390,422 | Oct. 02, 1888 | O.C. White | Wrench | screw adjust wrenches |
| 392,300 | Nov. 06, 1888 | F. Armstrong, N.W. Vandegrift | Wrench | pipe wrenches |
| 424,359 | Mar. 25, 1890 | L. Bowman, L. Schlesinger | Wrench | nut wrenches |
| 426,956 | Apr. 29, 1890 | D.R. Porter | Improved Pipe Wrench | pipe wrenches |
| 433,786 | Aug. 05, 1890 | G.W. Hooks | Wrench | pipe and nut combination wrenches |
| 451,396 | Apr. 28, 1891 | F.S. Chaney | Wrench | nut wrenches |
| 456,143 | Jul. 21, 1891 | H.J. Gilcher | Wrench | screw adjust wrenches |
| 460,427 | Sep. 29, 1891 | A. Cincade | Wrench | angle adjustable wrenches |
| 461,769 | Oct. 20, 1891 | F.S. Patton | Pipe Wrench | pipe wrenches |
| 485,775 | Nov. 08, 1892 | E.P. Scigliano | Nut Wrench | screw adjust wrenches |
| 491,606 | Feb. 14, 1893 | E.L. Shultz | Wrench | bicycle or pocket wrenches |
| 496,941 | May 09, 1893 | W.T. King | Wrench | screw adjust wrenches |
